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23 lines
774 B
23 lines
774 B
# Engenharia de Software 2007.1
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# Copyright (C) 2007, Adriano, Alinson, Andre, Rafael e Bustamante
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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class UniqueShortName < ActiveRecord::Migration
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def self.up
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add_index :courses, :short_name, :unique => true
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end
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def self.down
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remove_index :courses, :short_name
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end
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end
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